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THE CHALLENGE SO FAR: Readers 4-1; Sports staff 4-1.

All season long, our sports staff will predict winners for five of the week's top college football matchups. We invite you to play along and see if you can beat our staff. We will keep track of the results and bragging rights are up for grabs at the end of the season. Who do you think will come out on top: Coloradoan sports staff or Coloradoan readers?

1. Colorado State University at Boise State

Coming off a big Rocky Mountain Showdown win, the Rams (1-0) are looking to continue their success against Mountain West foe Boise State. The Broncos (0-1) are looking to improve on their poor defensive showing last week against Ole Miss.

Here's what the staff is saying:

Colorado State looked good in its opening win vs. Colorado, but probably isn't good enough yet to win at Boise State. #CSURams#MWfb

A matchup worthy of the Rose Bowl pits the Big Ten's No. 7 Michigan State (1-0) against the Pac-12's No. 3 Oregon (1-0). The Ducks are looking to continue their dominance at home after not losing a game in Eugene, Oregon, last season.

Here's what the staff is saying:

I think Michigan State has a pretty good team this year, but I don't see the Spartans -- or anyone else -- winning at Oregon this season.

Coming off a shutout of UC-Davis last week, No. 13 Stanford (1-0) is looking for redemption after losing a close battle to USC last season. The No. 14 Trojans (1-0) are also coming off a dominating win in Week 1.

Here's what the staff is saying:

It'll be close, but coming off a shutout win last week, I bet Stanford will have the stamina to outlast No. 14 USC. #collegefootball